Post Dive Interval; Confined Water Protocol (Training Mode); Taclite; Clock Programming - Cochran EMC-20H Owner's Manual

diver is shallower than the Ceiling. There is no 'Gauge' mode or
'Lockout' on the EMC-20H.
If the diver surfaces before satisfying his decompression obligation, the
EMC-20H will continue to give out-gassing credit as if it were in a dive,
but at a depth of zero feet and will satisfy the decompression time
requirements of the required stops using an FO
continue to log data and perform as if actually in a dive. When the
decompression obligation is finally satisfied, the ten-minute "Post Dive
Interval" will begin.
NOTE: COCHRAN does not intend for this instrument to be used for
deliberate Decompression diving.
POST DIVE INTERVAL: During the first ten minutes (or up to thirty
minutes if the unit is in the Training Mode) after a dive, the EMC-20H is in
the Post Dive Interval. The flashing "SURF" legend and a Surface Time
of less than ten minutes (or up to thirty if the unit is in the Training Mode)
indicate this. Should another dive be commenced before the completion
of the Post Dive Interval, that dive will be considered an extension of the
previous dive. In this case, Bottom Time will NOT include the time spent
on the surface in this Post Dive Interval. However, when reviewing the
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profile with the Analyst , the time spent on the surface in this period will
be shown.
CONFINED WATER PROTOCOL (Training Mode): The EMC-20H is
one of the first dive computers to offer an operating mode designed to
record and store data from training dives. That is, dives performed in
shallow water environments (swimming pools, shallow lakes, lagoons,
etc.) or calm open water environments that have less than 1-foot seas. In
the Training Mode, the EMC-20H enters the Dive Mode at a depth of 2
feet instead of 5 feet and will exit the Dive Mode at 1 foot instead of 3
feet. Also the Post Dive Surface Interval may be extended, via the
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Analyst , from 10 minutes up to a maximum of 30 minutes in 1-minute
increments after which the dive data is stored in the computer's memory.
These changes permit the Instructor to record the complete training
session, including in-water surface periods, as a single dive. The
Training Mode can only be enabled/disabled via the Professional
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Edition of the Analyst PC Interface.
TACLITE™: The EMC-20H is equipped with the TACLITE™ tactical low-
light fiber-optic backlighted display. The standard TACLITE™ color is
night vision safe red, but it is also available in yellow for those individuals
who have vision difficulties with the color red. The TACLITE™ can be
activated on demand. To turn the TACLITE™ on, tap the face of the
EMC-20H and the TACLITE™ will turn on for the preprogrammed number
of seconds (1 to 98), then turn off. By tapping the face again the
TACLITE™ will turn on again. In this fashion the TACLITE™ can be kept
on for as long as wanted. If 0 is entered, the TACLITE™ will never turn
on. If 99 is entered; the TACLITE™ will stay on continuously and only
turn off when the EMC-20H does. The number of seconds that the
TACLITE™ stays on can be set via the Programming Mode or via the
of 21%. The unit will
2
3
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Analyst PC Interface, factory setting is 10 seconds. The TACLITE™ will
turn off when the EMC-20H turns off. If the batteries get too low, the
TACLITE™ will turn off and cannot be turned back on until fresh batteries
are installed.
CLOCK MODE: The Clock operating mode of the EMC-20H is NOT
enabled when shipped from the factory. It can be enabled via the
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Analyst P.C. Interface or at an Authorized Cochran Dealer.
TOUCH PROGRAMMING MODE: Can only be accessed when the unit is
in the Surface Interval and allows the user to view or program into the
dive computer:
•
Setting Clock and Alarm Time
•
The PreDive Prediction Mode
•
Displaying Mode, mode value, & battery voltage
•
A Maximum Depth Alarm
•
An Added degree of Conservatism from 0 to 50%
•
Programming the On Time for the TACLITE™
•
Access the Logbook Mode
TOUCH PROGRAMMING - CLOCK: When the EMC-20H is placed into
the Clock mode it will display the time of day in a 24 hour day format.
The clock will continue to run when the EMC-20H is in the Dive Computer
Mode. The EMC-20H can be placed into the Clock Mode from the Dive
Computer Mode when the unit is in the Normal Surface Interval, while the
unit is in Clock Mode the Dive Computer will be in the "Sleep" mode.
The Clock Mode can be selected with or without an Alarm. If the Alarm
option is selected the unit will display the alarm set time as well as the
current time.
When the alarm time is displayed the alarm is activated and at the
programmed time the alarm will sound once every 24 hours. When the
alarm is activated the unit will issue a medley of all the audible warning
tones that the EMC-20H utilizes and the TACLITE™ will flash for one
minute, this audible alarm can not be turned off, it will sound for the full
one minute period.
The Clock Mode is selected via Touch Contact Programming.
NOTE: This Time of Day clock is the same clock that is used to time
stamp dives. Modifying the Time of Day clock will effect the Local
Time as viewed via the Analyst
clock must be changed via the Analyst

CLOCK PROGRAMMING PROCEDURE:

Contacts 1, 2, & 3 are for programming sequences.
To begin the programming sequence:
1. Turn the unit on;
2. Using a coin or other conductive metal object, briefly bridge
Contacts 1 and 2 until a short beep is heard and the Clock Menu is
seen on the display.
3. To enter the Clock submenu, bridge Contacts 1 & 2 with wetted
fingers. This will cause the unit to display the Clock Alarm selection
– On or OFF. To Toggle the selection, bridge contacts 1&2 with
wetted fingers.
4. Using a coin or other conductive metal object, bridge Contacts 1 & 2
to access the Clock Time or Alarm setting screen.
5. Shorting Contacts 1 & 2 with a coin will cause the first digit of the
minutes to flash.
6. Shorting Contacts 2 & 3 with a coin will increment the numeric value;
continue until the required value is displayed. A confirmation beep
will sound with each increment.
7. Next using wetted finger, bridge Contacts 1 & 2 to select the next
digit, once selected the digit will flash to identify that it is being
programmed. Bridge Contacts 2 & 3 till the desired value is
displayed.
8. To select Hours short Contacts 1 & 2 with a coin, increment as in
step 6 and 7.
9. Repeat step 5 through 7 until all digits have been programmed.
10. To save the changes that have been made bridge Contact 1 & 2
with a coin or other conductive metal object. Once the next
programming option is displayed the changes have been saved.
To exit the Clock Mode Bridge contacts 1 & 2 with wetted fingers and the
computer will return to the Dive Computer Mode's Surface Display.
NOTE: Ensure that the EMC-20H is in the Dive Computer Mode
before commencing a dive.
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. The Date portion of the Local Time
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.